Spring-perch fob



S TOMLINSON Carriage-Spring y a M d 9 n m f. a. P

DIM/I TINTTED STATES PATENT OFFICE.

STEPHEN TOMLINSON, OF BRIDGEPORT, CONNECTICUT.

SPRING-PERCH FOB CARRIAGES.

Specification of Letters Patent No. 2,624, dated May 16, 1842.

To all whom it may concern Be it known that I, STEPHEN TOMLINSON, ofBridgeport, in the county of Fair-field and State of Connecticut, haveinvented a new and useful Spring-Perch for Carriages, and do herebydeclare that the following is a full and exact description of the same.

The nature of my invention consists in providing a spring perch forcarriages having elliptic springs by which they can be constructed withless weight, with greater strength and durability, with an increasedamount of spring, and with the fifth wheel 3 above the elliptic spring.

To enable others skilled in the art of carriage making to make and usemy invention I will proceed to describe the operation and constructionof the same.

I construct my perch with plates of steel, or other proper material, ofproportions suitable to the size and intended use of the carriage towhich it is to be applied.

It consists mainly of two springs which are correspondingarcs ofcircles, placed opposite each other, (something like an elliptic springreversed) and fastened together at or near the center of the same by abolt or bolts as represented in the accompanying drawing at E inFigure 1. Each of the springs which compose the perch may beco-nstructedof a single bar, plate or piece of steel or other materialor of several bars, plates or pieces. The perch is connected with theaXletrees of the carriage by being attached to each of the ellipticsprings on the front and rear axletree at the points A, B, C, D, in theperch in Fig. 1, and at the points F and G in each of the ellipticsprings as in Fig. 2. The point A is fastened into the shackle under theupper half of the elliptic spring at the point F by the 'boltrepresented in Fig. 2, by a passing through the elliptic spring andbeing then fastened or properly secured by a nut or nuts. In the samemanner the point C, in Fig. 1, is fastened upon the upper side of thelower half of the elliptic spring upon the front axletree at the point Gin Fig. 2. The points B and D, in Fig. 1, are fastened in the samemanner precisely upon the elliptic spring upon the rear axletree.

K, in Fig. 1, represents a single brace which extends from a point atornear E in Fig. 1, and may be fastened under the front axletree at thepoint L.

H represents double braces which also extend from a point at or near Eand may be fastened upon the rear aXletree at the clips, marked by theletters I. These braces are for the purpose of giving strength andsecurity to the perch chiefly.

The operation and efi'ect of the spring perch is to give greater amountof spring to the carriage with less Weight of material and to diminishthe sudden and unusual resistances which the wheels may meet with bypermitting a retreating motion to the axletree by means of the spring inthe perch, thus lessening the shock, producing greater durability to thecarriage and additional ease and comfort to the rider.

The effect of placing the fifth wheel 8 above the elliptic spring is toenable the elliptic spring to be permanently fixed upon the forwardaxletree so that it will always turn with the same (which cannot be donein the common perch) thus removing the elliptic spring from the horse onturning the carriage, and thereby enabling the horse to be placed nearerthe carriage itself if desired.

hat I claim as my invention and what I desire to secure by LettersPatent is- The application of a spring perch as above described tocarriages of any size and description, which will combine the advantagesabove described, using for that purpose any material which mayaccomplish that purpose.

STEPHEN TOMLINSON.

lVitneSses:

MARK Moore, JAMEs C. LooMIs.

